36 11 000 Initializing tyre defect indicator (RPA)
WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Checking the tyre pressure is based on monitoring the speeds of the wheels in relation to each other. A tyre puncture is detected and signalled by way of a deviation in specific speed ratios.
The four tyres mounted on the vehicle are monitored while the vehicle is moving.
Initialization must be carried out in each case immediately after tyre pressures have been corrected, after tyres/wheels have been replaced and after repairs to the air spring system.
IMPORTANT:
The tyre defect indicator does not function when the vehicle is driven with the compact spare wheel.
Please refer to the relevant Owner's Manual for details of the initialization procedure.